*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    color: inherit;
}

body {
    font: normal 16px/1.5 "Helvetica Neue", sans-serif;
    background: #456990;
    color: #fff;
    overflow-x: hidden;
    padding-bottom: 50px;
}


/* INTRO SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.intro {
    background: #f45b69;
    padding: 100px 0;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
}


/* TIMELINE
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.timeline ul {
    background: #456990;
    padding: 50px 0;
}

.timeline ul li {
    list-style-type: none;
    position: relative;
    width: 6px;
    margin: 0 auto;
    padding-top: 50px;
    background: #fff;
}

.timeline ul li::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: inherit;
    z-index: 1;
}

.timeline ul li div {
    position: relative;
    bottom: 0;
    width: 400px;
    padding: 15px;
    background: #f45b69;
}

.timeline ul li div::before {
    content: "";
    position: absolute;
    bottom: 7px;
    width: 0;
    height: 0;
    border-style: solid;
}

.timeline ul li:nth-child(odd) div {
    left: 45px;
}

.timeline ul li:nth-child(odd) div::before {
    left: -15px;
    border-width: 8px 16px 8px 0;
    border-color: transparent #f45b69 transparent transparent;
}

.timeline ul li:nth-child(even) div {
    left: -439px;
}

.timeline ul li:nth-child(even) div::before {
    right: -15px;
    border-width: 8px 0 8px 16px;
    border-color: transparent transparent transparent #f45b69;
}

time {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 8px;
}


/* EFFECTS
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.timeline ul li::after {
    transition: background 0.5s ease-in-out;
}

.timeline ul li.in-view::after {
    background: #f45b69;
}

.timeline ul li div {
    visibility: hidden;
    opacity: 0;
    transition: all 0.5s ease-in-out;
}

.timeline ul li:nth-child(odd) div {
    transform: translate3d(200px, 0, 0);
}

.timeline ul li:nth-child(even) div {
    transform: translate3d(-200px, 0, 0);
}

.timeline ul li.in-view div {
    transform: none;
    visibility: visible;
    opacity: 1;
}


/* GENERAL MEDIA QUERIES
–––––––––––––––––––––––––––––––––––––––––––––––––– */

@media screen and (max-width: 900px) {
    .timeline ul li div {
        width: 250px;
    }
    .timeline ul li:nth-child(even) div {
        left: -289px;
        /*250+45-6*/
    }
}

@media screen and (max-width: 600px) {
    .timeline ul li {
        margin-left: 20px;
    }
    .timeline ul li div {
        width: calc(100vw - 91px);
    }
    .timeline ul li:nth-child(even) div {
        left: 45px;
    }
    .timeline ul li:nth-child(even) div::before {
        left: -15px;
        border-width: 8px 16px 8px 0;
        border-color: transparent #f45b69 transparent transparent;
    }
}


/* EXTRA/CLIP PATH STYLES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.timeline-clippy ul li::after {
    width: 40px;
    height: 40px;
    border-radius: 0;
}

.timeline-rhombus ul li::after {
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.timeline-rhombus ul li div::before {
    bottom: 12px;
}

.timeline-star ul li::after {
    clip-path: polygon(
                    50% 0%,
                    61% 35%,
                    98% 35%,
                    68% 57%,
                    79% 91%,
                    50% 70%,
                    21% 91%,
                    32% 57%,
                    2% 35%,
                    39% 35%
    );
}

.timeline-heptagon ul li::after {
    clip-path: polygon(
                    50% 0%,
                    90% 20%,
                    100% 60%,
                    75% 100%,
                    25% 100%,
                    0% 60%,
                    10% 20%
    );
}

.timeline-infinite ul li::after {
    animation: scaleAnimation 2s infinite;
}

@keyframes scaleAnimation {
    0% {
        transform: translateX(-50%) scale(1);
    }
    50% {
        transform: translateX(-50%) scale(1.25);
    }
    100% {
        transform: translateX(-50%) scale(1);
    }
}


/* FOOTER STYLES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.page-footer {
    position: fixed;
    right: 0;
    bottom: 20px;
    display: flex;
    align-items: center;
    padding: 5px;
    color: black;
    background: rgba(255, 255, 255, 0.65);
}

.page-footer a {
    display: flex;
    margin-left: 4px;
}